Visualization of edge-modulated charge-density-wave orders in monolayer transition-metal-dichalcogenide metal

Quanzhen Zhang; Jiahao Fan; Teng Zhang; Jizhang Wang; Xiaoyu Hao; Ying Ming Xie; Zeping Huang; Yaoyao Chen; Meng Liu; Liangguang Jia; Huixia Yang; Liwei Liu; Huaqing Huang; Yu Zhang; Wenhui Duan; Yeliang Wang

doi:10.1038/s42005-022-00899-y

Visualization of edge-modulated charge-density-wave orders in monolayer transition-metal-dichalcogenide metal

Quanzhen Zhang, Jiahao Fan, Teng Zhang, Jizhang Wang, Xiaoyu Hao, Ying Ming Xie, Zeping Huang, Yaoyao Chen, Meng Liu, Liangguang Jia, Huixia Yang, Liwei Liu, Huaqing Huang^*, Yu Zhang^*, Wenhui Duan, Yeliang Wang^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

In two-dimensional materials with the many-body quantum states, edges become especially significant for realizing a host of physical phenomena and for potential applications in nanodevices. Here, we report the successful construction of ultra-flat monolayer 1H-phase niobium diselenide (NbSe₂) with atomically sharp zigzag edges. Our scanning tunneling microscopy and spectroscopy measurements reveal that such zigzag edges hold intriguing one-dimensional edge states. Moreover, we observe an obvious energy-dependent charge-density-wave (CDW) modulation near the edge, highlighting the significant edge-CDW interference interactions. Our findings provide a comprehensive study of tunable structural and electronic properties at the edges in monolayer NbSe₂. More importantly, the edge-CDW interference model can be feasible for other CDW metals, suggesting a promising direction of extending desired edge functionalities.

Original language	English
Article number	117
Journal	Communications Physics
Volume	5
Issue number	1
DOIs	https://doi.org/10.1038/s42005-022-00899-y
Publication status	Published - Dec 2022

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@article{1fba210a14a344faad8d79eb22ff68cd,

title = "Visualization of edge-modulated charge-density-wave orders in monolayer transition-metal-dichalcogenide metal",

abstract = "In two-dimensional materials with the many-body quantum states, edges become especially significant for realizing a host of physical phenomena and for potential applications in nanodevices. Here, we report the successful construction of ultra-flat monolayer 1H-phase niobium diselenide (NbSe2) with atomically sharp zigzag edges. Our scanning tunneling microscopy and spectroscopy measurements reveal that such zigzag edges hold intriguing one-dimensional edge states. Moreover, we observe an obvious energy-dependent charge-density-wave (CDW) modulation near the edge, highlighting the significant edge-CDW interference interactions. Our findings provide a comprehensive study of tunable structural and electronic properties at the edges in monolayer NbSe2. More importantly, the edge-CDW interference model can be feasible for other CDW metals, suggesting a promising direction of extending desired edge functionalities.",

author = "Quanzhen Zhang and Jiahao Fan and Teng Zhang and Jizhang Wang and Xiaoyu Hao and Xie, {Ying Ming} and Zeping Huang and Yaoyao Chen and Meng Liu and Liangguang Jia and Huixia Yang and Liwei Liu and Huaqing Huang and Yu Zhang and Wenhui Duan and Yeliang Wang",

note = "Publisher Copyright: {\textcopyright} 2022, The Author(s).",

year = "2022",

month = dec,

doi = "10.1038/s42005-022-00899-y",

language = "English",

volume = "5",

journal = "Communications Physics",

issn = "2399-3650",

publisher = "Springer Nature",

number = "1",

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TY - JOUR

T1 - Visualization of edge-modulated charge-density-wave orders in monolayer transition-metal-dichalcogenide metal

AU - Zhang, Quanzhen

AU - Fan, Jiahao

AU - Zhang, Teng

AU - Wang, Jizhang

AU - Hao, Xiaoyu

AU - Xie, Ying Ming

AU - Huang, Zeping

AU - Chen, Yaoyao

AU - Liu, Meng

AU - Jia, Liangguang

AU - Yang, Huixia

AU - Liu, Liwei

AU - Huang, Huaqing

AU - Zhang, Yu

AU - Duan, Wenhui

AU - Wang, Yeliang

PY - 2022/12

Y1 - 2022/12

N2 - In two-dimensional materials with the many-body quantum states, edges become especially significant for realizing a host of physical phenomena and for potential applications in nanodevices. Here, we report the successful construction of ultra-flat monolayer 1H-phase niobium diselenide (NbSe2) with atomically sharp zigzag edges. Our scanning tunneling microscopy and spectroscopy measurements reveal that such zigzag edges hold intriguing one-dimensional edge states. Moreover, we observe an obvious energy-dependent charge-density-wave (CDW) modulation near the edge, highlighting the significant edge-CDW interference interactions. Our findings provide a comprehensive study of tunable structural and electronic properties at the edges in monolayer NbSe2. More importantly, the edge-CDW interference model can be feasible for other CDW metals, suggesting a promising direction of extending desired edge functionalities.

AB - In two-dimensional materials with the many-body quantum states, edges become especially significant for realizing a host of physical phenomena and for potential applications in nanodevices. Here, we report the successful construction of ultra-flat monolayer 1H-phase niobium diselenide (NbSe2) with atomically sharp zigzag edges. Our scanning tunneling microscopy and spectroscopy measurements reveal that such zigzag edges hold intriguing one-dimensional edge states. Moreover, we observe an obvious energy-dependent charge-density-wave (CDW) modulation near the edge, highlighting the significant edge-CDW interference interactions. Our findings provide a comprehensive study of tunable structural and electronic properties at the edges in monolayer NbSe2. More importantly, the edge-CDW interference model can be feasible for other CDW metals, suggesting a promising direction of extending desired edge functionalities.

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U2 - 10.1038/s42005-022-00899-y

DO - 10.1038/s42005-022-00899-y

M3 - Article

AN - SCOPUS:85129900005

SN - 2399-3650

VL - 5

JO - Communications Physics

JF - Communications Physics

IS - 1

M1 - 117

ER -

Visualization of edge-modulated charge-density-wave orders in monolayer transition-metal-dichalcogenide metal

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